Lab Practical | Skull Bones

what are the 8 cranial bones?

• frontal

• parietal (2)

• occipital

• temporal (2)

• sphenoid

• ethmoid

what are the 14 facial bones

• vomer

• mandible

• maxilla

• inferior nasal conchae (2)

• palatine (2)

• zygomatic (2)

• nasal (2)

• lacrimal (2)

identify the bone and it’s structures (A-D)

• frontal bone

A: squamous part

B: glabella

C: supraorbital margin

D: supraorbital foramen

which bone is this?

parietal

identify the bone and it’s structures (A-E)

• occipital bone

A: hypoglossal canal

B: occipital condyle

C: condylar canal

D: foramen magnum

E: external occipital protuberance

identify the bone and it’s structures (A-F)

• temporal bone

A: external acoustic meatus

B: mastoid process

C: styloid process

D: mandibular fossa

E: zygomatic process

F: squamous part

identify structures (G-J)

G: petrous part

H: jugular foramen

I: internal acoustic meatus
J: foramen lacerum

whats a

superior orbital fissure

whats b

optic foramen/canal

whats c

lesser wings

whats d

sella turcica

whats e

foramen rotundum

whats f

pterygoid process

whats g

dorsum sellae

whats h

foramen spinosum

whats i

foramen ovale

whats j

greater wings

identify the bone and it’s structures (A-J)

• sphenoid bone

A: superior orbital fissure

B: optic foramen/canal

C: lesser wings

D: sella turcica

E: foramen rotundum

F: pterygoid process

G: dorsum sellae

H: foramen spinosum

I: foramen ovale

J: greater wings

whats a

superior nasal concha

whats b

middle nasal concha

whats c

perpendicular plate

whats d

crista galli

whats e

orbital plate (optic surface)

whats f

cribriform plate (with olfactory foramina)

identify the bone and it’s structures (A-F)

• ethmoid bone

A: superior nasal concha

B: middle nasal concha
C: perpendicular plate

D: crista galli

E: orbital plate (optic surface)

F: cribriform plate (with olfactory foramina)

identify the bone (A) and its structure (B)

A: lacrimal bone

B: lacrimal groove

whats a

frontal process

whats B

alveolar process

whats c

infraorbital foramen

whats d

zygomatic process

whats e

anterior nasal spine

identify the bone and it’s structures (A-E)

• maxilla bone

A: frontal process

B: alveolar process

C: infraorbital foramen

D: zygomatic process

E: anterior nasal spine

whats a

orbital process

whats b

posterior nasal spine

whats c

horizontal plate

identify the bone and it’s structures (A-C)

• palatine bone

A: orbital process
B: posterior nasal spine

C: horizontal plate

incisive foramen

hole in the middle of roof of mouth

whats a

mandibular ramus

whats b

mental foramen

whats c

body

whats d

alveolar process

whats e

coronoid process

whats f

mandibular notch

whats g

condylar process

whats h

mandibular foramen

whats I

mandibular angle

identify the bone and it’s structures (A-I)

• mandible bone

A: mandibular ramus

B: mental foramen

C: body

D: alveolar process

E: coronoid process

F: mandibular notch

G: condylar process

H: mandibular foramen

I: mandibular angle

what bone is this?

vomer

whats a

inferior nasal concha

whats b

nasal bone

whats c

lacrimal bone (smallest bone)

whats a

coronal suture

whats b

sagittal suture

whats c

lambdoid suture

what’s d

squamous suture

what are the sutures (A-D)

A: coronal suture

B: sagittal suture

C: lambdoid suture

D: squamous suture

what are the fontanelles (A-D)

A: sphenoidal fontanelle (anterior)

B: posterolateral fontanelle (mastoid)

C: anterior fontanelle (frontal)

D: posterior fontanelle (occipital)

whats a

malleus

whats b

incus

whats c

stapes

identify the bone and it’s structures (A-C)

• ear ossicles

A: malleus

B: incus

C: stapes

whats a

lesser cornu

whats b

body

whats c

greater cornu

identify the bone and it’s structures (A-C)

• hyoid bone

A: lesser cornu

B: body

C: greater cornu

which bones contain sinuses?

• frontal

• sphenoid

• ethmoid

• maxilla

what bone and its structures (A-B)

• zygomatic arch

A: zygomatic process of temporal bone

B: temporal process of zygomatic bone

what bone and its structures (A-B)

• nasal septum

A: perpendicular plate of ethmoid

B: vomer

hard palate (A-B)

A: palatine process of maxillae

B: horizontal plates of palatine bones

what bones form the orbit?

• Frontal

• Sphenoid

• Ethmoid

• Maxilla

• Zygomatic

• Palatine

• Lacrimal

frontal bone articulations

• Parietal (Coronal suture)

• Sphenoid

• Ethmoid

• Nasal

• Maxilla

• Lacrimal

• Zygomatic

parietal bone articulations

• Opposite parietal (Sagittal suture)

• Frontal (Coronal suture)

• Occipital (Lambdoid suture)

• Temporal (Squamous suture)

• Sphenoid

occipital bone articulations

• Parietal (Lambdoid suture)

• Temporal

• Sphenoid

temporal bone articulations

• Parietal

• Occipital

• Sphenoid

• Zygomatic

• Mandible

sphenoid bone articulations

• Frontal

• Parietal

• Temporal

• Occipital

• Ethmoid

• Vomer

• Zygomatic

• Palatine

ethmoid bone articulations

• Frontal

• Sphenoid

• Vomer

• Nasal

• Maxillaa

• Lacrimal

• Palatine

• Inferior nasal conchae

maxilla articulations

• Frontal

• Ethmoid

• Nasal

• Zygomatic

• Lacrimal

• Inferior nasal concha

• Palatine

• Vomer

• Opposite maxilla

mandible articulations

• temporal (mandibular fossa)

vomer articulations

• ethmoid (perpendicular plate)

• sphenoid

• maxilla

• palatine